November 22, 2024

A Revolutionary Approach to Flu Prevention: New Molecules Stop Infection Before It Starts

They have developed drug-like molecules aimed at avoiding influenza infections before they begin by blocking the initial phase of the viral infection process.The drug-like inhibitors block the infection from going into the bodys breathing cells– particularly, they target hemagglutinin, a protein on the surface of type A influenza infections.”We started by developing a high-throughput hemagglutinin binding assay that enabled us to quickly screen big libraries of small molecules and discovered the lead substance F0045(S) with this procedure,” says corresponding author Dennis Wolan, PhD, senior principal researcher at Genentech and previous associate professor at Scripps Research.Compound 7, a molecular inhibitor of the influenza virus, communicating with the influenza virus hemagglutinin protein.”In terms of effectiveness, it will be hard to improve the molecule any further, however there are many other properties to enhance and think about, for example, pharmacokinetics, metabolic process, and liquid solubility,” states Kitamura.Because the inhibitors established in this research study only target H1N1 strains of influenza, researchers are also working to develop comparable drug-like inhibitors to target other stress of influenza such as H3N2 and H5N1.Reference: “Ultrapotent influenza hemagglutinin fusion inhibitors established through SuFEx-enabled high-throughput medical chemistry” by Seiya Kitamura, Ting-Hui Lin, Chang-Chun David Lee, Akihiro Takamura, Rameshwar U. Kadam, Ding Zhang, Xueyong Zhu, Lucas Dada, Emiko Nagai, Wenli Yu, Yao Yao, K. Barry Sharpless, Ian A. Wilson and Dennis W. Wolan, 16 May 2024, Proceedings of the National Academy of Sciences.DOI: 10.1073/ pnas.2310677121 This work was supported by the NIH, the Nathan Shock Institute of Aging Research, and Einstein-Montefiore.

They have developed drug-like particles aimed at preventing influenza infections before they start by obstructing the preliminary stage of the viral infection process.The drug-like inhibitors block the virus from getting in the bodys respiratory cells– specifically, they target hemagglutinin, a protein on the surface of type A influenza viruses.”We began by establishing a high-throughput hemagglutinin binding assay that permitted us to quickly screen large libraries of small particles and found the lead substance F0045(S) with this process,” states corresponding author Dennis Wolan, PhD, senior principal scientist at Genentech and previous associate professor at Scripps Research.Compound 7, a molecular inhibitor of the influenza virus, connecting with the influenza infection hemagglutinin protein.”In terms of potency, it will be difficult to improve the molecule any further, however there are many other residential or commercial properties to optimize and consider, for example, pharmacokinetics, metabolic process, and liquid solubility,” states Kitamura.Because the inhibitors established in this study only target H1N1 stress of influenza, researchers are likewise working to establish equivalent drug-like inhibitors to target other strains of influenza such as H3N2 and H5N1.Reference: “Ultrapotent influenza hemagglutinin blend inhibitors developed through SuFEx-enabled high-throughput medicinal chemistry” by Seiya Kitamura, Ting-Hui Lin, Chang-Chun David Lee, Akihiro Takamura, Rameshwar U. Kadam, Ding Zhang, Xueyong Zhu, Lucas Dada, Emiko Nagai, Wenli Yu, Yao Yao, K. Barry Sharpless, Ian A. Wilson and Dennis W. Wolan, 16 May 2024, Proceedings of the National Academy of Sciences.DOI: 10.1073/ pnas.2310677121 This work was supported by the NIH, the Nathan Shock Institute of Aging Research, and Einstein-Montefiore.